Sequence Data Analysis
Only uniquely mapped reads were used for further analysis. Transcriptional level (FPKM) of all the samples were measured using Cufflinks software (Trapnell et al., 2012), while differentially expressed genes (DEGs) between different samples were estimated using Cuffdiff (Trapnell et al. 2012). Transcripts with a log2FC (fold change) ≥ +2 and ≤ −2, and FDR (False Discovery Rate) value <0.05 were selected as significant differentially expressed genes (DEGs).